Device for producing nanofiber nonwoven fabric through multi-needle roller type high-voltage electrostatic spinning

Abstract

The invention relates to a device for producing a nanofiber nonwoven fabric through multi-needle roller type high-voltage electrostatic spinning. The device comprises a positive high-voltage power supply, a multi-needle roller spinning system, a transmission device, a postprocessor and a winding device, wherein the multi-needle roller spinning system comprises an electric spinning solution storage tank and a multi-needle roller with metal needles implanted on the surface; the multi-needle roller is fixedly connected to the upper part of the electric spinning solution storage tank and partially immersed in a solution; one end of a spinning bucket is connected with the transmission device to achieve rotation of a spinning rod; the other end of the spinning bucket is connected with the high-voltage power supply; the metal needles on the spinning bucket are dipped in the spinning solution on the lower side and then rotate to the upper side to form threadlike jet stream; the winding device is above the jet stream and is grounded, and spun silk is collected under the action of mechanical control. Due to the multi-needle roller spinning system, the nanofiber yield can be increased, the felt forming quality can be improved, the industrial production cost can be reduced, and single polymer can be produced or a multi-layer composite spinning fiber material of different polymers can be produced in one time.

Description

technical field [0001] The invention belongs to the fields of textile machinery and nanotechnology, and more specifically relates to a device for producing nanofiber nonwoven fabrics through high-voltage electrostatic spraying of multi-needle cylinders. Background technique [0002] Electrospinning is a process that uses the interaction between an electrostatic field and a conductive fluid to atomize a conductive fluid. When an external electrostatic field is applied to a conductive fluid (for example, a semi-diluted polymer solution or polymer melt), the surface tension of the suspended conical droplet balances the electric field. The electrostatic field strength generated during electrostatic atomization is sufficient to overcome the surface tension of the droplet, the droplet becomes unstable, and the jet stream is ejected from the surface of a tiny droplet. The fiber is collected when it reaches the receiving unit. According to different materials and processes, the di...

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Problems solved by technology

[0004] In order to overcome at least one defect in the prior art, the object of the present invention is to provide a device for producing nanofiber non-woven fabrics through multi-needle drum high-voltage electrostatic spinning. The multi-needle drum spinning system makes the device not only large Large-scale production of nanofibers can improve the output and felting quality of nanofibers; it can also remove systems such as solution pressure stabilization to reduce industrial production costs; at the same time, it can produce spinning fiber materials of a single polymer or use multiple spinning systems Spray fiber materials of different materials to produce multi-layer composite electrospun fiber materials of different polymers at one time to meet the needs of various applications of electrospun fiber materials

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